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[CMakeLuaTailorHgBridge.git] / CMakeLua / Utilities / cmzlib / zutil.h
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1 /* zutil.h -- internal interface and configuration of the compression library
2 * Copyright (C) 1995-2005 Jean-loup Gailly.
3 * For conditions of distribution and use, see copyright notice in zlib.h
4 */
6 /* WARNING: this file should *not* be used by applications. It is
7 part of the implementation of the compression library and is
8 subject to change. Applications should only use zlib.h.
9 */
11 <<<<<<< zutil.h
12 /* @(#) $Id: zutil.h,v 1.2 2007/09/11 15:22:29 david.cole Exp $ */
13 =======
14 /* @(#) $Id: zutil.h,v 1.3 2008-09-15 21:53:28 hoffman Exp $ */
15 >>>>>>> 1.3
17 #ifndef ZUTIL_H
18 #define ZUTIL_H
20 #define ZLIB_INTERNAL
21 #include "zlib.h"
23 #ifdef STDC
24 # ifndef _WIN32_WCE
25 # include <stddef.h>
26 # endif
27 # include <string.h>
28 # include <stdlib.h>
29 #endif
30 #ifdef NO_ERRNO_H
31 # ifdef _WIN32_WCE
32 /* The Microsoft C Run-Time Library for Windows CE doesn't have
33 * errno. We define it as a global variable to simplify porting.
34 * Its value is always 0 and should not be used. We rename it to
35 * avoid conflict with other libraries that use the same workaround.
37 # define errno z_errno
38 # endif
39 extern int errno;
40 #else
41 # ifndef _WIN32_WCE
42 # include <errno.h>
43 # endif
44 #endif
46 #ifndef local
47 # define local static
48 #endif
49 /* compile with -Dlocal if your debugger can't find static symbols */
51 typedef unsigned char uch;
52 typedef uch FAR uchf;
53 typedef unsigned short ush;
54 typedef ush FAR ushf;
55 typedef unsigned long ulg;
57 extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
58 /* (size given to avoid silly warnings with Visual C++) */
60 #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
62 #define ERR_RETURN(strm,err) \
63 return (strm->msg = (char*)ERR_MSG(err), (err))
64 /* To be used only when the state is known to be valid */
66 /* common constants */
68 #ifndef DEF_WBITS
69 # define DEF_WBITS MAX_WBITS
70 #endif
71 /* default windowBits for decompression. MAX_WBITS is for compression only */
73 #if MAX_MEM_LEVEL >= 8
74 # define DEF_MEM_LEVEL 8
75 #else
76 # define DEF_MEM_LEVEL MAX_MEM_LEVEL
77 #endif
78 /* default memLevel */
80 #define STORED_BLOCK 0
81 #define STATIC_TREES 1
82 #define DYN_TREES 2
83 /* The three kinds of block type */
85 #define MIN_MATCH 3
86 #define MAX_MATCH 258
87 /* The minimum and maximum match lengths */
89 #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
91 /* target dependencies */
93 #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
94 # define OS_CODE 0x00
95 # if defined(__TURBOC__) || defined(__BORLANDC__)
96 # if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
97 /* Allow compilation with ANSI keywords only enabled */
98 void _Cdecl farfree( void *block );
99 void *_Cdecl farmalloc( unsigned long nbytes );
100 # else
101 # include <alloc.h>
102 # endif
103 # else /* MSC or DJGPP */
104 # include <malloc.h>
105 # endif
106 #endif
108 #ifdef AMIGA
109 # define OS_CODE 0x01
110 #endif
112 #if defined(VAXC) || defined(VMS)
113 # define OS_CODE 0x02
114 # define F_OPEN(name, mode) \
115 fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
116 #endif
118 #if defined(ATARI) || defined(atarist)
119 # define OS_CODE 0x05
120 #endif
122 #ifdef OS2
123 # define OS_CODE 0x06
124 # ifdef M_I86
125 #include <malloc.h>
126 # endif
127 #endif
129 #if defined(MACOS) || defined(TARGET_OS_MAC)
130 # define OS_CODE 0x07
131 # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
132 # include <unix.h> /* for fdopen */
133 # else
134 # ifndef fdopen
135 # define fdopen(fd,mode) NULL /* No fdopen() */
136 # endif
137 # endif
138 #endif
140 #ifdef TOPS20
141 # define OS_CODE 0x0a
142 #endif
144 #ifdef WIN32
145 # ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */
146 # define OS_CODE 0x0b
147 # endif
148 #endif
150 #ifdef __50SERIES /* Prime/PRIMOS */
151 # define OS_CODE 0x0f
152 #endif
154 /* Haiku defines both __HAIKU__ and __BEOS__ (for now) */
155 /* many BeOS workarounds are no longer needed in Haiku */
156 #if defined(__HAIKU__) && defined(__BEOS__)
157 #undef __BEOS__
158 #endif
160 #if defined(_BEOS_) || defined(RISCOS)
161 # define fdopen(fd,mode) NULL /* No fdopen() */
162 #endif
164 #if (defined(_MSC_VER) && (_MSC_VER > 600))
165 # if defined(_WIN32_WCE)
166 # define fdopen(fd,mode) NULL /* No fdopen() */
167 # ifndef _PTRDIFF_T_DEFINED
168 typedef int ptrdiff_t;
169 # define _PTRDIFF_T_DEFINED
170 # endif
171 # else
172 # define fdopen(fd,type) _fdopen(fd,type)
173 # endif
174 #endif
176 /* common defaults */
178 #ifndef OS_CODE
179 # define OS_CODE 0x03 /* assume Unix */
180 #endif
182 #ifndef F_OPEN
183 # define F_OPEN(name, mode) fopen((name), (mode))
184 #endif
186 /* functions */
188 #if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550)
189 # ifndef HAVE_VSNPRINTF
190 # define HAVE_VSNPRINTF
191 # endif
192 #endif
193 #if defined(__CYGWIN__)
194 # ifndef HAVE_VSNPRINTF
195 # define HAVE_VSNPRINTF
196 # endif
197 #endif
198 #ifndef HAVE_VSNPRINTF
199 # ifdef MSDOS
200 /* vsnprintf may exist on some MS-DOS compilers (DJGPP?),
201 but for now we just assume it doesn't. */
202 # define NO_vsnprintf
203 # endif
204 # ifdef __TURBOC__
205 # define NO_vsnprintf
206 # endif
207 # ifdef WIN32
208 /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
209 # if !defined(vsnprintf) && !defined(NO_vsnprintf)
210 # define vsnprintf _vsnprintf
211 # endif
212 # endif
213 # ifdef __SASC
214 # define NO_vsnprintf
215 # endif
216 #endif
217 #ifdef VMS
218 # define NO_vsnprintf
219 #endif
221 #if defined(pyr)
222 # define NO_MEMCPY
223 #endif
224 #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
225 /* Use our own functions for small and medium model with MSC <= 5.0.
226 * You may have to use the same strategy for Borland C (untested).
227 * The __SC__ check is for Symantec.
229 # define NO_MEMCPY
230 #endif
231 #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
232 # define HAVE_MEMCPY
233 #endif
234 #ifdef HAVE_MEMCPY
235 # ifdef SMALL_MEDIUM /* MSDOS small or medium model */
236 # define zmemcpy _fmemcpy
237 # define zmemcmp _fmemcmp
238 # define zmemzero(dest, len) _fmemset(dest, 0, len)
239 # else
240 # define zmemcpy memcpy
241 # define zmemcmp memcmp
242 # define zmemzero(dest, len) memset(dest, 0, len)
243 # endif
244 #else
245 extern void zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
246 extern int zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
247 extern void zmemzero OF((Bytef* dest, uInt len));
248 #endif
250 /* Diagnostic functions */
251 #ifdef DEBUG
252 # include <stdio.h>
253 extern int z_verbose;
254 extern void z_error OF((char *m));
255 # define Assert(cond,msg) {if(!(cond)) z_error(msg);}
256 # define Trace(x) {if (z_verbose>=0) fprintf x ;}
257 # define Tracev(x) {if (z_verbose>0) fprintf x ;}
258 # define Tracevv(x) {if (z_verbose>1) fprintf x ;}
259 # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
260 # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
261 #else
262 # define Assert(cond,msg)
263 # define Trace(x)
264 # define Tracev(x)
265 # define Tracevv(x)
266 # define Tracec(c,x)
267 # define Tracecv(c,x)
268 #endif
271 voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
272 void zcfree OF((voidpf opaque, voidpf ptr));
274 #define ZALLOC(strm, items, size) \
275 (*((strm)->zalloc))((strm)->opaque, (items), (size))
276 #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
277 #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
279 #endif /* ZUTIL_H */